net.bytebuddy.implementation.bytecode.Addition Maven / Gradle / Ivy
/*
* Copyright 2014 - Present Rafael Winterhalter
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.bytebuddy.implementation.bytecode;
import net.bytebuddy.implementation.Implementation;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
/**
* A stack manipulation that adds two numbers on the operand stack.
*/
public enum Addition implements StackManipulation {
/**
* Adds two integers or integer-compatible values.
*/
INTEGER(Opcodes.IADD, StackSize.SINGLE),
/**
* Adds two longs.
*/
LONG(Opcodes.LADD, StackSize.DOUBLE),
/**
* Adds two floats.
*/
FLOAT(Opcodes.FADD, StackSize.SINGLE),
/**
* Adds two doubles.
*/
DOUBLE(Opcodes.DADD, StackSize.DOUBLE);
/**
* The opcode to apply.
*/
private final int opcode;
/**
* The stack size of the added primitive.
*/
private final StackSize stackSize;
/**
* Creates a new addition.
*
* @param opcode The opcode to apply.
* @param stackSize The stack size of the added primitive.
*/
Addition(int opcode, StackSize stackSize) {
this.opcode = opcode;
this.stackSize = stackSize;
}
/**
* {@inheritDoc}
*/
public boolean isValid() {
return true;
}
/**
* {@inheritDoc}
*/
public Size apply(MethodVisitor methodVisitor, Implementation.Context implementationContext) {
methodVisitor.visitInsn(opcode);
return stackSize.toDecreasingSize();
}
}